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Marie-Louise has an income of $10 to buy peanuts and popcorn. The price of a bag of peanuts is $1 and the price of a bag of popcorn is $2. What is Marie-Louise's real income in terms of popcorn?
1/2 bag of popcorn
❌
2 bags of popcorn
❌
$2 per bag of popcorn
❌
10 bags of popcorn
❌
5 bags of popcorn
✅
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Which of the following statements about the indifference curves for two goods that are close but not perfect substitutes is correct?
The marginal rate of substitution decreases as more of the good measured on the
x
-axis and less of the good measured on the
y
-axis are consumed.
0%
The marginal rate of substitution between the goods is negative.
0%
The indifference curves are L-shaped.
0%
The marginal rate of substitution between the goods is constant.
0%
The indifference curves are negatively-sloped straight lines.
0%
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For Vivien, vintage clothing is a normal good. If the price of vintage clothing falls and Vivien's income remains the same, what are the substitution and income effects of the price fall?
The substitution effect ________ the quantity of vintage clothing bought and the income effect ________ the quantity of vintage clothing bought.
does not change; increases
❌
increases; decreases
❌
decreases; decreases
❌
increases; increases
✅
decreases; increases
❌
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How does a change in the price of the good measured on the horizontal axis change the consumer's budget line?
Both the slope and
y
-intercept change.
❌
Only the
x
-intercept changes.
❌
Both the
x
- and
y
-intercepts change, but not the slope.
❌
Only the slope changes.
❌
Both the slope and
x
-intercept change.
✅
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What is the shape of the consumer's indifference curves if the two goods that the consumer buys are perfect substitutes?
The indifference curves are
positively-sloped straight lines.
❌
L-shaped.
❌
negatively-sloped straight lines.
✅
horizontal straight lines.
❌
vertical straight lines.
❌
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The consumer makes the best affordable choice and then the price of one good rises. Which of the following statements must be correct?
The substitution effect of the price rise is positive.
❌
The substitution effect of the price rise is negative.
✅
The income effect of the price rise is positive.
❌
The income effect of the price rise is zero.
❌
The income effect of the price rise offsets the substitution effect.
❌
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How does a change in the consumer's income change the consumer's budget line?
Both the slope and
y
-intercept change.
❌
Both the
x
- and
y
-intercepts change, but not the slope.
✅
Only the
y
-intercept changes.
❌
Only the slope changes.
❌
Both the slope and
x
-intercept change.
❌
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Larry consumes only beer (
B
) and chips (
C
). What is the magnitude of the slope of Larry's budget line with beer measured on the vertical axis?
P
C
/Y
❌
Y/P
C
❌
P
C
×
P
B
❌
Y/P
B
❌
P
C
/P
B
✅
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What is a consumer's marginal rate of substitution?
As the consumer moves along an indifference curve, the marginal rate of substitution between goods
X
and
Y
is the rate at which a consumer gives up the good measured on the
y
-axis to get an additional unit of the good measured on the
x
-axis.
✅
increases and more of the good measured on the
x
-axis is bought.
❌
is the amount of good
Y
the consumer must give up to move to a higher indifference curve.
❌
is greater than the magnitude of the slope of the budget line.
❌
is equal to the slope of the budget line.
❌
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If good
X
is measured on the horizontal axis and good
Y
is measured on the vertical axis, what is a consumer's marginal rate of substitution between good
X
and good
Y
?
It is equal to the magnitude of the slope of the budget line.
0%
It is the rate at which a consumer will give up good
Y
to obtain an additional unit of good
X
while remaining indifferent.
0%
It is the relative price of good
X
in terms of good
Y
.
0%
It is the relative price of good
Y
in terms of good
X
.
0%
It is the rate at which a consumer will give up good
X
to obtain an additional unit of good Y while remaining indifferent.
0%
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